Having acquired the Aristotelian lesson that identified metaphysics as the apex of the sciences, Boethius sensed the need to elevate the Trinitarian dogma to such epistemological condition. Therefore, he elaborates dialectically – meaning with exclusively philosophical tools of neo-Platonic origin – the Trinitarian faith professed by Catholics, in an attempt to give it logical transparency and realize its rational demonstration. Indeed, De Trinitate qualifies as a pamphlet of philosophical/natural theology. Thomas will comment on its first two chapters, probably with the main purpose of moderating its rationalism and, after formalizing the epistemological profile of dogmatic theology, he assigns to the latter the study and deepening of Trinitarian questions in order to take them permanently away from philosophy.